<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style type="text/css">
	.c1{
		width:180px;
		height:200px;
	}
	.c2{
		width:20%;
	}
</style>
</head>
<body>
<h1>图片大小</h1>
<img src="fj1.jpg" class="c1"/>
<h1>图片缩放</h1>
<img src="fj1.jpg" class="c2"/>
</body>
</html>